Advanced Depth Filtration with ErtelAlsop Pak® Lenticular Cartridges
At Purecowater, we specialize in solving complex solid and liquid filtration challenges. As a distributor for top-tier filtration manufacturers, we are proud to offer ErtelAlsop Pak® Lenticular Filters. These depth filter modules represent a significant evolution in filtration technology, combining the high-capacity performance of plate and frame systems with the convenience and hygiene of an enclosed cartridge format.
Whether you are in the pharmaceutical, food and beverage, or chemical industry, the ErtelAlsop Pak® provides a versatile, leak-free solution for critical applications.
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What Are Pak® Lenticular Filters?
ErtelAlsop Pak® cartridges, also known as depth lenticular filter modules, are designed to replace traditional plate and frame filters. A “Pak” consists of stacked lenticular filter cells—varying from 5 to 18 cells typically—assembled into a single unit. Each cell is made from a pair of depth filter media sheets (such as MicroMedia® or AlphaMedia®) with edges sealed using a patented polypropylene process via ertelalsop.com.
This construction resembles a stack of double convex lenses (“lenticular”), creating a totally enclosed system. This design prevents leakage and atmospheric exposure, making it vastly superior for applications requiring sanitary conditions or handling hazardous fluids.
Key Benefits and Features
The Pak® system bridges the gap between surface filtration and heavy-duty depth filtration. Its complex matrix of fibers provides excellent particle retention and solids loading capacity.
- High Solids Loading: The depth media matrix traps particles throughout the thickness of the pad, not just on the surface.
- Leak-Free Design: Unlike plate and frame presses which can drip, the lenticular cartridge is housed in a sealed vessel.
- Zeta Potential: Many media options, like the Micro-Media® series, possess a positive Zeta potential, enhancing the adsorption of ultrafine particles, haze, and biological contaminants clearsolutionscorp.com.
- Scalability: Available in 12-inch and 16-inch diameters with varying cell counts to match flow rate requirements.
Media Technologies Available
The core performance of the ErtelAlsop Pak® comes from its diverse media options. Selecting the right media is crucial for your specific distillate, syrup, or chemical process.
| Media Type | Composition | Best Application |
|---|---|---|
| Micro-Media® | Cellulose, Wet Strength Resin, & Diatomaceous Earth (DE) | Haze removal, critical retention, zeta potential applications, and botanical extracts. |
| AlphaMedia® | 100% Cellulose (No DE or Perlite) | Applications requiring high purity where inorganic filter aids are not permitted, such as certain pharmaceutical or cosmetic fluids clearsolutionscorp.com. |
| MicroClear® | Activated Carbon impregnated media | Color correction, odor removal, and organic contaminant reduction. |
Technical Specifications
ErtelAlsop Pak® cartridges are available in standard industry sizes to fit existing lenticular housings. Below are the general specifications for system engineers and facility managers.
| Specification | Details |
|---|---|
| Diameter | 12 inch (30.5 cm) or 16 inch (40.6 cm) |
| Micron Ratings (Nominal) | 0.25 µm to 15 µm (Standard grades include 1.0, 2.5, 5, 10 µm) |
| End Configurations | Flat Gasket or Double O-Ring (ensure housing compatibility) |
| Core Material | Polypropylene (Standard), Stainless Steel (Optional for specific high-temp units) |
| Gasket Materials | EPDM, Silicone, Buna-N, Viton (Application dependent) |
| Cell Count | Typically 5 to 18 cells per module |
Note: ErtelAlsop has over 300 precision dies to fit virtually any filter press or housing requirement ertelalsop.com.
Common Applications
The versatility of the Pak® module allows it to serve various sectors:
- Pharmaceuticals: Clarification of APIs, removal of catalysts (carbon media), and filtration of serums.
- Food & Beverage: Polishing syrups, distilled spirits filtration, and removal of chill haze in edible oils.
- Botanical Extracts: Dewaxing and lipid removal using DE-impregnated media which preserves active ingredients while ensuring product clarity clearsolutionscorp.com.
- Chemical & Utilities: Filtration of dielectric oils, coolants, and process water in electric utilities.
For detailed sizing, compatibility checks, or to view our full lineup of filtration solutions including Veolia and LG membranes, reach out to our engineering team.
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